//
//  UIBarButtonItem+Extension.swift
//  TYHWeibo
//
//  Created by IOS on 15/8/10.
//  Copyright © 2015年 IOS. All rights reserved.
//

import UIKit

extension UIBarButtonItem {

    convenience  init(imageName: String, target: AnyObject?, action: String?) {
        let btn = UIButton()
        btn.setImage(UIImage(named: imageName), forState: UIControlState.Normal)
        btn.setImage(UIImage(named: imageName + "_highlighted"), forState: UIControlState.Highlighted)
        btn.sizeToFit()
        
        //设置监听方法
        if let actionName = action{
        btn.addTarget(target, action: Selector(actionName), forControlEvents: UIControlEvents.TouchUpInside)
        
        }
        
        self.init(customView: btn)
    }
}
